Home / 22,969.96-31,690.63-12,897.01

Finding the Fourth Proportional to 22,969.96, 31,690.63 and 12,897.01

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Solution

The fourth proportional to 22,969.96, 31,690.63 and 12,897.01 is: 17,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,969.96 : 31,690.63 = 12,897.01 : x
  2. Step 2: Convert to fraction form
    22,969.96/31,690.63 = 12,897.01/x
  3. Step 3: Cross multiply
    22,969.96x = 31,690.63 × 12,897.01
  4. Step 4: Simplify right side
    22,969.96x = 408,714,372.02
  5. Step 5: Solve for x
    x = 408,714,372.02/22,969.96
  6. Step 6: Final answer
    x = 17,793.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.